i got my aqua craft miss vegas a week a go, broke it in, added a grim racer turn fin and a y535 metal prop (grimracer) after the break in. then i was running it and i noticed i was looseing power so i brought it in and the exhaust header (the L shaped piece that connects the engine to the tuned pipe) was stripped off the engine. the bolts wernt stripped at all but the exaust header was totally stripped through, their are no threads left. is this a normal thing you have to replace, or is their something seriously wrong?
i was useing odonnell 30% nitro racing fuel
os .18 engine
help? should i buy a new one or buy some longer bolts and a few nuts and try it that way or what.